package cn.nihao365.common.core;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author zhu hui (zhuhui@nihao365.cn)
 * @version 1.0
 * @date 2021-10-28 21:23:52
 */
public class LoginInterceptor implements HandlerInterceptor{

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("1、----LoginInterceptor.preHandle------------");
        Object user = request.getSession().getAttribute("user");
        if (user == null) {
            System.out.println("尚未登录，调到登录页面");
            response.sendRedirect("login");
            return false;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("3、----LoginInterceptor.postHandle------------");
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("4、----LoginInterceptor.afterCompletion---------");
    }

}
